/*
 * Copyright 2018 Paul Schaub.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.pgpainless.key;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

import org.bouncycastle.openpgp.PGPPublicKey;
import org.junit.jupiter.api.Test;


public class OpenPgpV4FingerprintTest {

    @Test
    public void fpTooShort() {
        String fp = "484f57414c495645"; // Asking Mark
        assertThrows(IllegalArgumentException.class, () -> new OpenPgpV4Fingerprint(fp));
    }

    @Test
    public void invalidHexTest() {
        String fp = "UNFORTUNATELYTHISISNOVALIDHEXADECIMALDOH";
        assertThrows(IllegalArgumentException.class, () -> new OpenPgpV4Fingerprint(fp));
    }

    @Test
    public void validFingerprintTest() {
        String fp = "4A4F48414E4E53454E2049532041204E45524421";
        OpenPgpV4Fingerprint finger = new OpenPgpV4Fingerprint(fp);
        assertEquals(fp, finger.toString());
        assertEquals(fp.length(), finger.length());
        for (int i = 0; i < finger.length(); i++) {
            assertEquals(fp.charAt(i), finger.charAt(i));
        }
        assertEquals("4A4F", finger.subSequence(0, 4));
    }

    @Test
    public void convertsToUpperCaseTest() {
        String fp = "444f4e5420552048415645204120484f4242593f";
        OpenPgpV4Fingerprint finger = new OpenPgpV4Fingerprint(fp);
        assertEquals("444F4E5420552048415645204120484F4242593F", finger.toString());
    }

    @Test
    public void equalsOtherFingerprintTest() {
        OpenPgpV4Fingerprint finger = new OpenPgpV4Fingerprint("5448452043414b452049532041204c4945212121");
        assertEquals(finger, new OpenPgpV4Fingerprint("5448452043414B452049532041204C4945212121"));
        assertEquals(0, finger.compareTo(new OpenPgpV4Fingerprint("5448452043414B452049532041204C4945212121")));
        assertNotEquals(finger, new OpenPgpV4Fingerprint("0000000000000000000000000000000000000000"));
        assertNotEquals(finger, null);
        assertNotEquals(finger, new Object());
    }

    @Test
    public void assertFingerprintGetKeyIdEqualsKeyId() throws IOException {
        PGPPublicKey key = TestKeys.getJulietPublicKeyRing().getPublicKey();
        long keyId = key.getKeyID();

        OpenPgpV4Fingerprint fingerprint = new OpenPgpV4Fingerprint(key);
        assertEquals(keyId, fingerprint.getKeyId());
    }

    @Test
    public void testToUri() {
        OpenPgpV4Fingerprint fingerprint = new OpenPgpV4Fingerprint("5448452043414B452049532041204C4945212121");

        URI uri = fingerprint.toUri();
        assertEquals("openpgp4fpr:5448452043414B452049532041204C4945212121", uri.toString());

        OpenPgpV4Fingerprint parsed = OpenPgpV4Fingerprint.fromUri(uri);
        assertEquals(fingerprint, parsed);
    }

    @Test
    public void testFromUriThrowsIfWrongScheme() throws URISyntaxException {
        URI uri = new URI(null, "5448452043414B452049532041204C4945212121", null);
        assertThrows(IllegalArgumentException.class, () -> OpenPgpV4Fingerprint.fromUri(uri));
    }
}